package com.aq.gaoji;

/**
 * @Author Zhang Chao
 * @Date 2021/2/24 0:53
 * @Version 1.0
 */

@SuppressWarnings("all")
//测试生产者消费者  ——————管程法 利用缓冲区
public class TestPC {


    public static void main(String[] args) {
        SynContainer syContainner = new SynContainer();
        new Producer(syContainner).start();
        new Consumer(syContainner).start();

    }

}

//生产者
class Producer extends Thread{
    SynContainer container;
    public Producer(SynContainer containner){
        this.container=containner;
    }

    //生产
    @Override
    public void run() {
        for (int i = 0; i < 100; i++) {
            container.push(new Chicken(i));
            System.out.println("生产了"+i+"只鸡");
        }
    }
}

//消费者
class Consumer extends Thread{
    SynContainer container;
    public Consumer(SynContainer container){
        this.container=container;
    }

    //消费
    @Override
    public void run() {
        for (int i = 0; i < 100; i++) {
            System.out.println("消费了————》"+container.pop().id+"鸡");
        }
    }
}

//产品
class Chicken{
    int id;
    public Chicken(int id){
        this.id= id;
    }
}

//缓冲区
class SynContainer{

    Chicken[] chickens = new Chicken[10];    //需要一个容器
    int count = 0;    //容器计数器

    //生产者放入一个产品
    public synchronized void push (Chicken chicken){

        //如果容器满了 就需要等待消费者消费
        if (count==chickens.length){
            //通知消费者消费，生产等待
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

        chickens[count] = chicken;    //如果没有满。我们就需要丢入产品
        count++;

        this.notifyAll();     //可以通知消费者消费了
    }

    //消费者消费产品
    public synchronized Chicken pop(){
        //判断能否消费
        if(count == 0){

            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        //如果可以消费
        count--;
        Chicken chicken = chickens[count];

        //吃完了,通知生产者生产
        this.notifyAll();
        return chicken;
    }

}

